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Doctor insights on: Ultrasounds At 7 Weeks Pregnant

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Are ultrasounds accurate at dating conception at 12 weeks?

Are ultrasounds accurate at dating conception at 12 weeks?

Much more than: Later in gestation. First trimester ultrasound is most accurate at estimating gestational age within 5-7 days (depends on the center). It trails off after that. General rule: 2nd trimester scans for dating are +/- 14 days and 3rd trimester is the least accurate (+/-21 days). ...Read more

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Dr. Martin Raff
4 doctors shared insights

Pregnancy (Definition)

When your due date arrives, you will be more than ready to have your baby! Most women deliver the baby somewhere between 37 and 42 weeks. According to the American College of Obstetricians and Gynecologists, only 5% of babies arrive on the exact due date. Approximately 7% of babies are not delivered by 42 weeks, and when that happens, it is referred to ...Read more


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What happened at 7 weeks 3 days of pregnancy?

What happened at 7 weeks 3 days of pregnancy?

I am sorry: But there isn't enough information to answer this question. Did you have a problem with a pregnancy at that time. Please clarify ; re-ask. ...Read more

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How accurate are conception dates given at 7 to 8 weeks gestation??

How accurate are conception dates given at 7 to 8 weeks gestation??

Very: If done by ultrasound and correlated two to three times in subsequent weeks, it is probably within 2days. If it is a single measurement, it would be less accurate but still within a 4-5 day margin. As always, depends on the skill of the ultrasonographer. In a fertility practice, like ours, that scans early pregnancy frequently, we find this level of accuracy. Hope this helps. ...Read more

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By LMP I am 7 weeks pregnant. Ultrasound at 6 weeks 3 days showed irregular sac, no heartbeat or yolk etc. No flow around sac. Hcg rising. Miscarriage?

By LMP I am 7 weeks pregnant. Ultrasound at 6 weeks 3 days showed irregular sac, no heartbeat or yolk etc. No flow around sac. Hcg rising. Miscarriage?

Early pregnancy: It's too soon to be sure what is going on. Often a woman will ovulate later and the lmp will not be accurate. The best option is to repeat the beta-hcg every 48 hours until 3 results are performed and a repeat ultrasound 1 week after the previous was done. That will usually solve the question. ...Read more

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Im 7 weeks pregnant from ivf, hCG rising, now at 20700. 7 week scan had gest sac @ 13mm and yolk sac, no fetal pole or heartbeat. Is pregnancy doomed?

Im 7 weeks pregnant from ivf, hCG rising, now at 20700. 7 week scan had gest sac @ 13mm and yolk sac, no fetal pole or heartbeat. Is pregnancy doomed?

I am afraid so.: Your transvaginal sonogram should have shown a fetal pole and heart tones after a beta HCG level of 6, 000. Your rei specialist can fill you in on the issues of early pregnancy failure after ivf, which include molar pregnancy, blighted ovum, heterotopic and ectopic pregnancies. At your age, you should achieve a successful pregnancy within 2-6 ivf cycles. Best of luck! ...Read more

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Transvaginal ultrasound on 9/19/13 dated pregnancy at 8w3d. 4/28/14 due date. Next ultrasound 12/13/13 dated 20w4d. Possible dates of conception?

Transvaginal ultrasound on 9/19/13 dated pregnancy at 8w3d. 4/28/14 due date. Next ultrasound 12/13/13 dated 20w4d. Possible dates of conception?

Conception: Conception calculators are available all over the web and can be a source of information and entertainment when one is pregnant. For a due date of 4/28/14 sex occurred 7/31/2013 to 8/5/2013. ...Read more

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8 weeks pregnant & on prometrium (micronized progesterone) due to vaginal bleeding at 4 weeks. Heartbeat at 6 weeks, another ultrasound scheduled next week. Miscarriage risk?

8 weeks pregnant & on prometrium (micronized progesterone) due to vaginal bleeding at 4 weeks. Heartbeat at 6 weeks, another ultrasound scheduled next week. Miscarriage risk?

Slightly above norm: Bleeding during pregnancy does put you at slightly increased risk. Know, however, that 25% of women experience 1st trimester bleeding and the majority of those go on to have successful term pregnancies. Only time will tell. Best wishes and good luck with this pregnancy. ...Read more

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Would an emergency room transvaginal ultrasound miss any signs of pregnancy at 7 weeks pregnant?

Would an emergency room transvaginal ultrasound miss any signs of pregnancy at 7 weeks pregnant?

Depends: If your dates are absolutely correct, and you have not had any irregular bleeding, and you have had regular periods in the past, then at 7 weeks gestation, an ultrasound would reveal pregnancy signs. So if the ultrasound was negative for any intrauterine or extrauterine pregnancy, usually, this is corroborated with quantitative beta hCG levels. Hope this helps. ...Read more

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Four first trimester ultrasounds done at 7 8 10 12 week all come. Up with same conception date. What's it mean??

Four first trimester ultrasounds done at 7 8 10 12 week all come. Up with same conception date. What's it mean??

Good estimates: One scan gives a good estimate of the conception date. A second scan that gives the same estimate, just gives more confidence that the first scan's estimate is accurate. Accurate means plus or minus one week - because nobody knows exactly when conception happens. However, if a woman knows exactly when she had sex, that can point to the conception date. Normally, people don't get so many scans. ...Read more

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Unknown LMP but dating scan measured baby at 63.9 at 12 weeks and 5 days. Is 12 weeks and 5 days when i conceived? Edd is 8 february.

Unknown LMP but dating scan measured baby at 63.9 at 12 weeks and 5 days. Is 12 weeks and 5 days when i conceived? Edd is 8 february.

No: Generally ultrasound dating is using the gestational age, which means it is 12 weeks from your last missed period. Generally date of conception is about 2 weeks less than last period. So about 10 weeks ago. ...Read more

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Are ultrasounds done at 6 weeks more accurate than ultrasounds done at 10 weeks?

Are ultrasounds done at 6 weeks more accurate than ultrasounds done at 10 weeks?

Prenatal?: If you're asking about a prenatal ultrasound, no not necessarily. If anything, a 10 week ultrasound may give you more detail you may not be able to see in the 6 week ultrasound. However, the 6 week ultrasound is necessary to check on the general wellbeing of that tiny fetus and make sure it is viable. ...Read more

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4 wk pregnant at 3 days of pink spotting. Hcg was 59 at 3 weeks 6 days. Doc thinks implantation. Numbers ok? Worried about miscarriage.

Need serial betaHCG: Your blood betaHCG of 59 seems a bit low and your concerns are understandable. But if your HCG levels are repeated about every 2 days and they continue to double accordingly, you and your obstetrician can have a better idea of the progress of your pregnancy until a pelvic sonogram can be indicated. ...Read more

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Embryo was measuring on target on ultrasound performed at 6 weeks 3 days. Now 8 days later, embryo measures 7 weeks 2 days (rather than 7 weeks 4 days) hearbeat present on both scans. Have had a previous miscarriage and two healthy births, am very worri

Embryo was measuring on target on ultrasound performed at 6 weeks 3 days. Now 8 days later, embryo measures 7 weeks 2 days (rather than 7 weeks 4 days) hearbeat present on both scans. 

Have had a previous miscarriage and two healthy births, am very worri

No need to worry: The early ultrasound exam of the embryo although fairly accurate still can measure plus or minus a few days. These measurements are small and by just placing the caliber a few tenth of a millimeter more or less will give one more or less day. The simple rule is first trimester scans can be are plus or minus 1 week off, second trimester plus or minus 2 weeks and third plus or minus 3 weeks. ...Read more

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